668375147 has 8 divisors (see below), whose sum is σ = 760838400. Its totient is φ = 581195560.

The previous prime is 668375129. The next prime is 668375173. The reversal of 668375147 is 741573866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 668375147 - 2¹⁸ = 668113003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668375117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320647 + ... + 1321152.

It is an arithmetic number, because the mean of its divisors is an integer number (95104800).

Almost surely, 2^668375147 is an apocalyptic number.

668375147 is a deficient number, since it is larger than the sum of its proper divisors (92463253).

668375147 is a wasteful number, since it uses less digits than its factorization.

668375147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641833.

The product of its digits is 846720, while the sum is 47.

The square root of 668375147 is about 25852.9523845924. The cubic root of 668375147 is about 874.3260756895.

The spelling of 668375147 in words is "six hundred sixty-eight million, three hundred seventy-five thousand, one hundred forty-seven".